Photonic crystal fiber sensor for magnetic field detection
S. M. M. Quintero, University of Rio de Janeiro (Brazil); C. Martelli, Federal University of Technology - Paraná (Brazil); C. C. Kato, L. C. G. Valente, University of Rio de Janeiro (Brazil)
A magnetic field sensor comprised of a high birefringence photonic crystal fiber coated by a Terfenol-D/Epoxy composite layer is proposed. Magnetic fields induce strains in the magnetostrictive composite that are transferred to the fiber interfering with light propagation. The sensitivity of the developed sensor with magnetic fields is measured to be 6 pm mT-1.
